Turnbuckle.



E.. HNDERMAN.

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APPLCATION FILED MIGi I0. i918.'- 1,3955359, Patented June 3, i919.

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www 007'/ #linde-rma@ CARL HINDEmyInIv, oF PHILADELIQHIA,v PENNSYLVANIA.

TURNBUCKL.

To all 'whom t mag/concern:

Be it known'that'l, CARL HINDERMAN, a

citizen of the United States, residing atl 5400 Valnut street, Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented new and useful'Improvements in Turnbuckles, of which 4the following is a specification.'

The invention relates to turnbuckles, and hasforanobject to provide a turnbuckle in which parts thereofcan be relatively locked to secure the turnbuckle' against accidental movement.

features, 'a device which although adaptable for various purposes, is particularly used in connection with aeroplane construction for securing in tension the usual stays and guy Wires employed, and to this end the invention consists of aturnbuckle having-a locking arrangement/to prevent accidental rotation of the turnbuckle, and which rotation, if effected, would either increase the strain on the guy wiresto a breaking point, or losen the guy wires makingthasame useless for the purpose for whichthey Vare employed.

In the further disclosure ofthe inven- -tion, reference is to be hadv to the accompanying drawing, constituting a part of this specification, 1n which similar characters of reference denote corresponding parts in all the views, and in which. Figure 1 is a fragmentary side elevation of the turnbuckle showing the parts in unlocked relation, parts being bro en away tov disclose the .underlying structure. Fig. 2 is a: side elevation, showing the parts in locked relation, and s' Fig. 3 isa vertical sectional view taken on theline 3 3 inFig. 2.

Referring more particularly tothe views, the turnbuckle incl es a plurality of screw rods 10, 11, adapted for threadedassociation' with a tubular threaded connecting f-len'ient l2, one of the screw rods 10 being threaded into one end of the element and.

the other screw rod into the o posite end. The screw rod 10 lfas a circular; ead 13. provided with an opening 14, which head termif nates in afsquared shank 1 5, havinga trans- I verse aperture 16. The screw rod-11 is pro;-

vided with a similarv head 17 havingn opening 1 8 therein. and it Willof coursebe 55. Shanks are integral with the respective understood' that the mentioned headsand speincation of Iettersratent.

Patented June 3. 1919.

Application med mgm 1o, 191s. serial matanza.

scurewrods. The connecting element 12'has a -portion thereof formed with a squared. shank 19, and which portion receives thev screw rod 10 therein, and mounted to slide on saidA squared shank 19, and entirelyA inclosing same, is a squared sleeve 20,-which can` be slid forwardly to pass over the aperture 16, toA permit of passing a cotter pin' or other 'securing' wire 22 or the like,

through the registering apertures, thus lockJ A l ing the head part ofthe screw rod 10 rela- The inventioncomprehends amongother tive tothe connecting element. In the use of my -invention the head this end of the turnbuc e; andthe head 13 :isv preferably v'arranged to have a suitable 'guy wire' pass through the opening 14 20 canb'e slid forwardly from the positionv shown in Fig. 1 to the position shownl in' Fig.- 2, thus bringing the Asleeve over'the squared shank 15 to permit of securing the wire 22 in position to'pass through the apertures 16 and 21, as shown in Fig. 3. Thus the'turnbuckle will besecured so that accidental rotation thereof will be prevented,

' and it will of course be understood that the squared shank formation on one head end of one of the screwrods may be duplicated on Athe other screw rod, if desired,u depend# ing entirely upon. the particular -use to I claim: 1. In a turnbuckle the which the turnbuckle is to be put.

the screw threaded thereto, said connecting element including a squared portion,o f .a head on the screwrod and having a squared shank, and-a squared' sleeve mounted to ,slide' on the squared portion of'theconnecting element, -andgno'vable to extend over and aroundthe squared shank of the head totion, .of a screw rod threaded into the'con necting element, afh'ead. on the -screw rod,

combination with` a .screw rod and `a connecting element having vis preferably secured to a suitable bracket' 23, by having astrap 24 in the bracket pass- Iing through the openinlg'lS, thus anchoring :a sqlmied shank on seid head p1" vcL-efl with ein :iper/alize, an apelured square sleeve mounted to slide on the sqnare oi'ton of said Connecting element, and mof'able to eX- tend over and on to 'he squared shank of the head, with the apertures of the sleeve in regsration with the apelture in the shank of the. head9 and a locking element adapted to pass t'lreugh said 'regsteing apertures to lock sind sleeve/relative i0 the she-nk of the hea?.

3. In n turubuckle the combination with a connecting element having the surface Lheeof of e pacular shape, of a screw rod in threaded engagement with said element. head on said screw rod, a Shank .integral with said head and having the exterior of the same contour as the exterlor of sind connect-ing element, a sleeve mounted to slide 20 On said cennectng element and having ite inner sufzwe of a' Shape and contour Simile!"v to the shape and contour of the surface of said connecting eemen and Said shank, said Sleeve being nevable to extend over and on To saic'i shani, and means for locking said sleeve rele-tive to said shank, when Said sleeve has a polon theeof extending on to and ovel the shank and :mother portion thereof ex'ending; on o and over a part of said eonnectng element.

En esinmny whereof ax Signature.

CARL HIIJDERMA. 

